Date: Tue, 29 Mar 2011 16:57:59 +0200 From: Bernd Walter <ticso@cicely7.cicely.de> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: Sergey Kandaurov <pluknet@gmail.com>, ticso@cicely.de, freebsd-current Current <freebsd-current@freebsd.org> Subject: Re: ipv6 / rtadv problem Message-ID: <20110329145759.GB34921@cicely7.cicely.de> In-Reply-To: <6C3B14AB-AB41-4705-84C2-EEFC38656EE9@gsoft.com.au> References: <451C39DA-76B9-4767-9FFC-24F2A182E301@dons.net.au> <AANLkTinaELN40kvgDrjN0=iPT1KJNS=P2duFEk7jRS2W@mail.gmail.com> <0C27BDBF-1F22-4DFD-A1A5-48D0BD1618BC@gsoft.com.au> <71147117-D87B-4F36-9838-238E144BB51F@gsoft.com.au> <AANLkTimxY_xft=Rr-Wos=42c%2B7Pb3X2axv%2BizycgNN0U@mail.gmail.com> <D5F8A67A-53EC-4E4A-AD17-0AB1A9F47321@gsoft.com.au> <20110329113414.GA33138@cicely7.cicely.de> <6C3B14AB-AB41-4705-84C2-EEFC38656EE9@gsoft.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Mar 29, 2011 at 10:19:26PM +1030, Daniel O'Connor wrote: > > On 29/03/2011, at 22:04, Bernd Walter wrote: > > My assumption is that the problem is with the other host or switch > > network and you just never noticed this so far because this kind of > > problem can easily hide for a very long time. > > Hmm, I have pretty stupid hardware, I am fairly sure none of my switches understand multicast. There are two class of multicast capable switches. On of them are professional switches of course, but given that IPTV runs with multicast some cheap manageable switches and quite often integrated switches in plastic routers support it as well. IPv4 multicast and IPv6 multicast is very similar, but they use non colliding MAC ranges, so pure IPv4 multicast switches are not a problem for IPv6 multicast, but I'm a bit worried that some cheap devices have alpha quality IPv6 multicast support enabled. -- B.Walter <bernd@bwct.de> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20110329145759.GB34921>